IP Library Granted Patent US 5,952,933
Granted Patent Utility
US 5,952,933 · App. 08/929,876

System having advanced embedded code hopping encryption and learn mode therefor

Inventors: Darrell E. Issa, Jerry W. Birchfield, Charles Chen
Patented Case View Patent ↗
Granted: Sep 14, 1999 Filed: Sep 15, 1997
Inventors
Darrell E. Issa
Jerry W. Birchfield
Charles Chen

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

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Quick Facts
Patent No.
US 5,952,933
App. No.
08/929,876
Filed
1997-09-15
Granted
1999-09-14
Kind
A